#container {
    display: flex;
    flex-direction: column;
    padding: 20px;
    border: 1px solid #000000;
    .friendship_form {
        margin-bottom: 1.875rem;
    }

    .friendship_table {
        width: 62.5rem;
    }
    .btn {
        background-color: black;
        transition: background-color 0.3s ease; // 添加过渡效果
        font-size: 1.25rem;

        &:hover {
            background-color: rgb(251, 251, 251) !important; // 修改悬停时的背景颜色
            color: black !important;
            border: 2px solid black;
        }
    }
}
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }